Re: Emacs crashes, 07nov16

[Robert J. Chassell]

    Do you still get crashes if you use the font ...*iso10646-1 instead of
    ...*iso8859-1 from the start?

Yes, even with a size of 18, which I did not expect.  

That is in 
Today's GNU Emacs CVS snapshot, Fri, 2007 Nov 23  11:14 UTC
GNU Emacs 23.0.50.4 (i686-pc-linux-gnu, GTK+ Version 2.12.1)
started in debugger with

    set args -i -q \
    --eval '(emacs-version t)' -bg DodgerBlue4 -fg white \
    -fn '-misc-fixed-medium-r-normal--18-120-100-100-c-90-iso10646-1' \
    -geometry 80x44+545+43 -name '-q GNU Emacs in Debugger, font: fixed 18'


with the breakpoint at xterm.c:1374 
and after I evaluated  (x-synchronize t)  in the debuggee

(I could not even visit my test file with a size of 20,

 -misc-fixed-medium-r-normal--20-200-75-75-c-100-iso10646-1

    #0  0xffffe410 in __kernel_vsyscall ()
    #1  0xb7483c26 in kill () from /lib/i686/cmov/libc.so.6
    #2  0x080f906b in abort () at emacs.c:431 

although the only  breakpoint was at xterm.c:1374 

The following is for a size of 18 after visiting my test file which
tries to insert a Euro sign.)


(gdb) bt full
#0  x_draw_glyph_string (s=0xbf807330) at xterm.c:1374
        tem = <value optimized out>
        h = <value optimized out>
        y = <value optimized out>
        relief_drawn_p = 0
#1  0x0806b295 in draw_glyphs (w=0x8601fe8, x=45, row=0x86272c4, 
area=TEXT_AREA, start=0, end=2, hl=DRAW_NORMAL_TEXT, overlaps=0) at 
xdisp.c:19850
        base_face = (struct face *) 0x8055cc1
        char2b = <value optimized out>
        cmp = <value optimized out>
        glyph_len = -1215192509
        faces = <value optimized out>
        first_s = <value optimized out>
        n = <value optimized out>
        first_glyph = <value optimized out>
        head = (struct glyph_string *) 0xbf807330
        tail = (struct glyph_string *) 0xbf807280
        s = (struct glyph_string *) 0xbf807330
        clip_head = (struct glyph_string *) 0x0
        clip_tail = (struct glyph_string *) 0x0
        last_x = 747
        x_reached = 45
        i = 2
        j = -1082100680
        f = <value optimized out>
#2  0x0806d932 in x_write_glyphs (start=0x8605a90, len=2) at xdisp.c:21149
        x = <value optimized out>
#3  0x08056041 in update_window_line (w=0x8601fe8, vpos=9, 
mouse_face_overwritten_p=0xbf807678) at dispnew.c:4446
        current_row = (struct glyph_row *) 0x86467bc
        desired_row = (struct glyph_row *) 0x86272c4
        rif = (struct redisplay_interface *) 0x81be740
        changed_p = 0
#4  0x08058384 in update_window (w=0x8601fe8, force_p=0) at dispnew.c:4302
        tm = {
  tv_sec = 1195819727, 
  tv_usec = 905224
}
        vpos = -1082100976
        i = <value optimized out>
        end = (struct glyph_row *) 0x8628794
        header_line_row = (struct glyph_row *) 0x0
        changed_p = 1
        mouse_face_overwritten_p = 0
        row = (struct glyph_row *) 0x86272c4
        yb = 756
        desired_matrix = (struct glyph_matrix *) 0x8604ae8
        paused_p = 0
        rif = (struct redisplay_interface *) 0x81be740
#5  0x08059629 in update_window_tree (w=0x8601fe8, force_p=0) at dispnew.c:3995
        paused_p = <value optimized out>
#6  0x0805b7ae in update_frame (f=0x8601e60, force_p=0, inhibit_hairy_id_p=0) 
at dispnew.c:3923
        tm = {
  tv_sec = 1195819727, 
  tv_usec = 896018
}
        p = 1
        sec = 0
        usec = 100000
        paused_p = <value optimized out>
        root_window = (struct window *) 0x8601fe8
#7  0x0808a2a2 in redisplay_internal (preserve_echo_area=<value optimized out>) 
at xdisp.c:11455
        f = (struct frame *) 0x8601e60
        tail = <value optimized out>
        frame = <value optimized out>
        w = (struct window *) 0x8601fe8
        pause = 0
        must_finish = 1
        tlbufpos = {
  charpos = 0, 
  bytepos = 0
}
        number_of_visible_frames = 1
        polling_stopped_here = 0
        old_frame = 140516964
        consider_all_windows_p = 1
#8  0x0810544e in read_char (commandflag=1, nmaps=2, maps=0xbf8081c0, 
prev_event=137562313, used_mouse_menu=0xbf808258, end_time=0x0) at 
keyboard.c:2748
        keys = 0
        key_count = 140516960
        key_count_reset = 0
        saved_ok_to_echo = (struct kboard *) 0x0
        saved_echo_string = 0
        c = 137562313
        local_getcjmp = {{
    __jmpbuf = {137562313, -1082097488, 142874648, 142874652, -1082097512, 
135913216}, 
    __mask_was_saved = 137804429, 
    __saved_mask = {
      __val = {137597689, 1, 3212869808, 142874648, 3212869808, 3212870024, 
135639811, 137804429, 137597689, 142874652, 0 <repeats 22 times>}
    }
  }}
        save_jump = {{
    __jmpbuf = {0, 137562313, 0, 0, 142874652, 137879588}, 
    __mask_was_saved = 1418, 
    __saved_mask = {
      __val = {3212869624, 135910666, 0, 1417, 3212869656, 135910877, 0, 1, 0, 
142874652, 137879588, 1417, 3212869672, 135910666, 137724945, 1416, 3212869704, 
135910877, 1, 1, 137562313, 137597689, 137804424, 137562313, 3212869752, 
135913031, 137597689, 137803581, 3212869760, 0, 1, 137804429}
    }
  }}
        key_already_recorded = 0
        tem = 2
        save = 140516960
        previous_echo_area_message = 137562313
        also_record = 137562313
        reread = 0
        polling_stopped_here = <value optimized out>
        orig_kboard = (struct kboard *) 0x85e2200
#9  0x08107f23 in read_key_sequence (keybuf=0xbf808304, bufsize=30, 
prompt=137562313, dont_downcase_last=0, can_return_switch_frame=1, 
fix_current_buffer=1) at keyboard.c:9455
        interrupted_kboard = (KBOARD *) 0x85e2200
        key = 142258956
        used_mouse_menu = 0
        echo_local_start = 0
        last_real_key_start = 0
        keys_local_start = 0
        local_first_binding = 0
        from_string = 137562313
        count = 2
        t = 0
        echo_start = 0
        keys_start = 0
        nmaps = 2
        nmaps_allocated = 2
        defs = (Lisp_Object * volatile) 0xbf8081a0
        submaps = (Lisp_Object * volatile) 0xbf8081c0
        orig_local_map = 139309701
        orig_keymap = 137562313
        localized_local_map = 0
        first_binding = 0
        first_unbound = 31
        mock_input = 0
        fkey = {
  parent = 139323205, 
  map = 139323205, 
  start = 0, 
  end = 0
}
        keytran = {
  parent = 137554789, 
  map = 137554789, 
  start = 0, 
  end = 0
}
        indec = {
  parent = 139323213, 
  map = 139323213, 
  start = 0, 
  end = 0
}
        delayed_switch_frame = 137562313
        original_uppercase = 0
        original_uppercase_position = -1
        starting_buffer = (struct buffer *) 0x8841818
        fake_prefixed_keys = 137562313
#10 0x08109be1 in command_loop_1 () at keyboard.c:1684
        cmd = <value optimized out>
        lose = <value optimized out>
        nonundocount = 0
        keybuf = {192, 48, 135283358, 139307181, 137562361, -1082096822, 
137562313, 0, 137562313, -1082096760, 135283616, 139307181, -1082096822, 
134541223, -1219987364, 134522604, 1, -1224708108, -1208518624, 0, -1082096792, 
-1082096944, 0, -1082130432, 137562313, 138190441, 0, 137911688, 137911672, 
-1082096760}
        i = <value optimized out>
        prev_modiff = 76
        prev_buffer = (struct buffer *) 0x8338540
        already_adjusted = 0
#11 0x081607b0 in internal_condition_case (bfun=0x8109a40 <command_loop_1>, 
handlers=137619713, hfun=0x81042f0 <cmd_error>) at eval.c:1493
        val = <value optimized out>
        c = {
  tag = 137562313, 
  val = 137562313, 
  next = 0xbf8084b0, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {0, 137911688, 137911672, -1082096520, 352788609, 940499950}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {0, 3212870336, 3073538260, 3212870388, 3086367968, 0, 
3212870316, 3076255732, 2534, 3086430780, 3212870336, 3212870612, 276967387, 
49, 3074944076, 3074943100, 134542083, 3212870704, 3212870992, 4294967295, 
3212870840, 135341251, 3212870992, 3212870704, 3074959980, 3076272128, 0, 
110932256, 3086446580, 134522604, 3086448232, 3212870784}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
        h = {
  handler = 137619713, 
  var = 137562313, 
  chosen_clause = 137562361, 
  tag = 0xbf80839c, 
  next = 0x0
}
#12 0x08103773 in command_loop_2 () at keyboard.c:1396
        val = 0
#13 0x0816088a in internal_catch (tag=137611273, func=0x8103750 
<command_loop_2>, arg=137562313) at eval.c:1229
        c = {
  tag = 137611273, 
  val = 137562313, 
  next = 0x0, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {0, 137911688, 137911672, -1082096264, 352927873, 940637166}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {0, 177, 22, 0 <repeats 13 times>, 3078526273, 140018008, 
140018184, 3212871096, 137748338, 137748336, 137746960, 3212871016, 135605493, 
137746961, 137748338, 137562313, 137594176, 3072297248, 140018192, 137562337}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
#14 0x08104157 in command_loop () at keyboard.c:1375
No locals.
#15 0x081044bb in recursive_edit_1 () at keyboard.c:984
        val = <value optimized out>
#16 0x081045f1 in Frecursive_edit () at keyboard.c:1046
        buffer = 137562313
#17 0x080f9df5 in main (argc=15, argv=0xbf808984) at emacs.c:1777
        tz = 0xbf809efb "UTC"
        dummy = -1082095400
        stack_bottom_variable = 8 '\b'
        do_initial_setlocale = 1
        skip_args = 0
        rlim = {
  rlim_cur = 8388608, 
  rlim_max = 18446744073709551615
}
        no_loadup = 0
        junk = 0x0

(gdb)  p *s->font_info
$1 = {
  font = 0x86025b8, 
  font_idx = 0, 
  name = 0x85f9658 
"-misc-fixed-medium-r-normal--18-120-100-100-c-90-iso10646-1", 
  full_name = 0x86024e0 
"-Misc-Fixed-Medium-R-Normal--18-120-100-100-C-90-ISO10646-1", 
  charset = 0, 
  size = 9, 
  height = 18, 
  space_width = 9, 
  average_width = 9, 
  vertical_centering = 0, 
  encoding = "\000\377", '\0' <repeats 126 times>, '\001' <repeats 127 times>, 
  baseline_offset = 0, 
  relative_compose = 0, 
  default_ascent = 0, 
  font_encoder = 0x8602520
}
(gdb) p *s->font
$2 = {
  ext_data = 0x86026d0, 
  fid = 35651602, 
  direction = 0, 
  min_char_or_byte2 = 0, 
  max_char_or_byte2 = 255, 
  min_byte1 = 0, 
  max_byte1 = 255, 
  all_chars_exist = 0, 
  default_char = 0, 
  n_properties = 23, 
  properties = 0x8602610, 
  min_bounds = {
    lbearing = 0, 
    rbearing = 0, 
    width = 9, 
    ascent = -3, 
    descent = -13, 
    attributes = 0
  }, 
  max_bounds = {
    lbearing = 8, 
    rbearing = 9, 
    width = 9, 
    ascent = 14, 
    descent = 4, 
    attributes = 0
  }, 
  per_char = 0xb6e59000, 
  ascent = 14, 
  descent = 4
}
(gdb) p *s
$3 = {
  x = 27, 
  y = 162, 
  ybase = 176, 
  width = 9, 
  background_width = 9, 
  height = 18, 
  left_overhang = 0, 
  right_overhang = 0, 
  f = 0x8601e60, 
  w = 0x8601fe8, 
  display = 0x85b9400, 
  window = 35651800, 
  row = 0x86272c4, 
  area = TEXT_AREA, 
  char2b = 0xbf807310, 
  nchars = 1, 
  hl = DRAW_NORMAL_TEXT, 
  face = 0x833e1f0, 
  font = 0x86025b8, 
  font_info = 0x86026e8, 
  cmp = 0x0, 
  gidx = 0, 
  extends_to_end_of_line_p = 0, 
  background_filled_p = 0, 
  two_byte_p = 1, 
  font_not_found_p = 0, 
  stippled_p = 0, 
  for_overlaps = 0, 
  gc = 0x884a6f8, 
  first_glyph = 0x8605a90, 
  img = 0x0, 
  slice = {
    x = 0, 
    y = 0, 
    width = 0, 
    height = 0
  }, 
  clip_head = 0x0, 
  clip_tail = 0x0, 
  next = 0xbf807280, 
  prev = 0x0
}
(gdb) p s->char2b[0]
$4 = {
  byte1 = 32 ' ', 
  byte2 = 172 '\254'
}

-- 
    Robert J. Chassell                          GnuPG Key ID: 004B4AC8
    address@hidden                         address@hidden
    http://www.rattlesnake.com                  http://www.teak.cc